/**
* Parse a string GapPolicy into the byte enum
*
* @param context SearchContext this is taking place in
* @param text GapPolicy in string format (e.g. "ignore")
* @return GapPolicy enum
*/
public static GapPolicy parse(
QueryParseContext context, String text, XContentLocation tokenLocation) {
GapPolicy result = null;
for (GapPolicy policy : values()) {
if (context.getParseFieldMatcher().match(text, policy.parseField)) {
if (result == null) {
result = policy;
} else {
throw new IllegalStateException(
"Text can be parsed to 2 different gap policies: text=["
+ text
+ "], "
+ "policies="
+ Arrays.asList(result, policy));
}
}
}
if (result == null) {
final List<String> validNames = new ArrayList<>();
for (GapPolicy policy : values()) {
validNames.add(policy.getName());
}
throw new ParsingException(
tokenLocation, "Invalid gap policy: [" + text + "], accepted values: " + validNames);
}
return result;
}
public static IncludeExclude parseInclude(XContentParser parser, QueryParseContext context)
throws IOException {
XContentParser.Token token = parser.currentToken();
if (token == XContentParser.Token.VALUE_STRING) {
return new IncludeExclude(parser.text(), null);
} else if (token == XContentParser.Token.START_ARRAY) {
return new IncludeExclude(new TreeSet<>(parseArrayToSet(parser)), null);
} else if (token == XContentParser.Token.START_OBJECT) {
ParseFieldMatcher parseFieldMatcher = context.getParseFieldMatcher();
String currentFieldName = null;
Integer partition = null, numPartitions = null;
while ((token = parser.nextToken()) != XContentParser.Token.END_OBJECT) {
if (token == XContentParser.Token.FIELD_NAME) {
currentFieldName = parser.currentName();
} else
// This "include":{"pattern":"foo.*"} syntax is undocumented since 2.0
// Regexes should be "include":"foo.*"
if (parseFieldMatcher.match(currentFieldName, PATTERN_FIELD)) {
return new IncludeExclude(parser.text(), null);
} else if (parseFieldMatcher.match(currentFieldName, NUM_PARTITIONS_FIELD)) {
numPartitions = parser.intValue();
} else if (parseFieldMatcher.match(currentFieldName, PARTITION_FIELD)) {
partition = parser.intValue();
} else {
throw new ElasticsearchParseException(
"Unknown parameter in Include/Exclude clause: " + currentFieldName);
}
}
if (partition == null) {
throw new IllegalArgumentException(
"Missing ["
+ PARTITION_FIELD.getPreferredName()
+ "] parameter for partition-based include");
}
if (numPartitions == null) {
throw new IllegalArgumentException(
"Missing ["
+ NUM_PARTITIONS_FIELD.getPreferredName()
+ "] parameter for partition-based include");
}
return new IncludeExclude(partition, numPartitions);
} else {
throw new IllegalArgumentException("Unrecognized token for an include [" + token + "]");
}
}
public static NestedAggregationBuilder parse(String aggregationName, QueryParseContext context)
throws IOException {
String path = null;
XContentParser.Token token;
String currentFieldName = null;
XContentParser parser = context.parser();
while ((token = parser.nextToken()) != XContentParser.Token.END_OBJECT) {
if (token == XContentParser.Token.FIELD_NAME) {
currentFieldName = parser.currentName();
} else if (token == XContentParser.Token.VALUE_STRING) {
if (context.getParseFieldMatcher().match(currentFieldName, NestedAggregator.PATH_FIELD)) {
path = parser.text();
} else {
throw new ParsingException(
parser.getTokenLocation(),
"Unknown key for a "
+ token
+ " in ["
+ aggregationName
+ "]: ["
+ currentFieldName
+ "].");
}
} else {
throw new ParsingException(
parser.getTokenLocation(),
"Unexpected token " + token + " in [" + aggregationName + "].");
}
}
if (path == null) {
// "field" doesn't exist, so we fall back to the context of the ancestors
throw new ParsingException(
parser.getTokenLocation(),
"Missing [path] field for nested aggregation [" + aggregationName + "]");
}
return new NestedAggregationBuilder(aggregationName, path);
}
public static ScriptedMetricAggregationBuilder parse(
String aggregationName, QueryParseContext context) throws IOException {
Script initScript = null;
Script mapScript = null;
Script combineScript = null;
Script reduceScript = null;
Map<String, Object> params = null;
XContentParser.Token token;
String currentFieldName = null;
Set<String> scriptParameters = new HashSet<>();
scriptParameters.add(INIT_SCRIPT_FIELD.getPreferredName());
scriptParameters.add(MAP_SCRIPT_FIELD.getPreferredName());
scriptParameters.add(COMBINE_SCRIPT_FIELD.getPreferredName());
scriptParameters.add(REDUCE_SCRIPT_FIELD.getPreferredName());
XContentParser parser = context.parser();
while ((token = parser.nextToken()) != XContentParser.Token.END_OBJECT) {
if (token == XContentParser.Token.FIELD_NAME) {
currentFieldName = parser.currentName();
} else if (token == XContentParser.Token.START_OBJECT
|| token == XContentParser.Token.VALUE_STRING) {
if (context.getParseFieldMatcher().match(currentFieldName, INIT_SCRIPT_FIELD)) {
initScript =
Script.parse(
parser, context.getParseFieldMatcher(), context.getDefaultScriptLanguage());
} else if (context.getParseFieldMatcher().match(currentFieldName, MAP_SCRIPT_FIELD)) {
mapScript =
Script.parse(
parser, context.getParseFieldMatcher(), context.getDefaultScriptLanguage());
} else if (context.getParseFieldMatcher().match(currentFieldName, COMBINE_SCRIPT_FIELD)) {
combineScript =
Script.parse(
parser, context.getParseFieldMatcher(), context.getDefaultScriptLanguage());
} else if (context.getParseFieldMatcher().match(currentFieldName, REDUCE_SCRIPT_FIELD)) {
reduceScript =
Script.parse(
parser, context.getParseFieldMatcher(), context.getDefaultScriptLanguage());
} else if (token == XContentParser.Token.START_OBJECT
&& context.getParseFieldMatcher().match(currentFieldName, PARAMS_FIELD)) {
params = parser.map();
} else {
throw new ParsingException(
parser.getTokenLocation(),
"Unknown key for a "
+ token
+ " in ["
+ aggregationName
+ "]: ["
+ currentFieldName
+ "].");
}
} else {
throw new ParsingException(
parser.getTokenLocation(),
"Unexpected token " + token + " in [" + aggregationName + "].");
}
}
if (mapScript == null) {
throw new ParsingException(
parser.getTokenLocation(), "map_script field is required in [" + aggregationName + "].");
}
ScriptedMetricAggregationBuilder factory =
new ScriptedMetricAggregationBuilder(aggregationName);
if (initScript != null) {
factory.initScript(initScript);
}
if (mapScript != null) {
factory.mapScript(mapScript);
}
if (combineScript != null) {
factory.combineScript(combineScript);
}
if (reduceScript != null) {
factory.reduceScript(reduceScript);
}
if (params != null) {
factory.params(params);
}
return factory;
}
public static BucketSelectorPipelineAggregationBuilder parse(
String reducerName, QueryParseContext context) throws IOException {
XContentParser parser = context.parser();
XContentParser.Token token;
Script script = null;
String currentFieldName = null;
Map<String, String> bucketsPathsMap = null;
GapPolicy gapPolicy = null;
while ((token = parser.nextToken()) != XContentParser.Token.END_OBJECT) {
if (token == XContentParser.Token.FIELD_NAME) {
currentFieldName = parser.currentName();
} else if (token == XContentParser.Token.VALUE_STRING) {
if (context.getParseFieldMatcher().match(currentFieldName, BUCKETS_PATH)) {
bucketsPathsMap = new HashMap<>();
bucketsPathsMap.put("_value", parser.text());
} else if (context.getParseFieldMatcher().match(currentFieldName, GAP_POLICY)) {
gapPolicy = GapPolicy.parse(context, parser.text(), parser.getTokenLocation());
} else if (context.getParseFieldMatcher().match(currentFieldName, ScriptField.SCRIPT)) {
script = Script.parse(parser, context.getParseFieldMatcher());
} else {
throw new ParsingException(
parser.getTokenLocation(),
"Unknown key for a "
+ token
+ " in ["
+ reducerName
+ "]: ["
+ currentFieldName
+ "].");
}
} else if (token == XContentParser.Token.START_ARRAY) {
if (context.getParseFieldMatcher().match(currentFieldName, BUCKETS_PATH)) {
List<String> paths = new ArrayList<>();
while ((token = parser.nextToken()) != XContentParser.Token.END_ARRAY) {
String path = parser.text();
paths.add(path);
}
bucketsPathsMap = new HashMap<>();
for (int i = 0; i < paths.size(); i++) {
bucketsPathsMap.put("_value" + i, paths.get(i));
}
} else {
throw new ParsingException(
parser.getTokenLocation(),
"Unknown key for a "
+ token
+ " in ["
+ reducerName
+ "]: ["
+ currentFieldName
+ "].");
}
} else if (token == XContentParser.Token.START_OBJECT) {
if (context.getParseFieldMatcher().match(currentFieldName, ScriptField.SCRIPT)) {
script = Script.parse(parser, context.getParseFieldMatcher());
} else if (context.getParseFieldMatcher().match(currentFieldName, BUCKETS_PATH)) {
Map<String, Object> map = parser.map();
bucketsPathsMap = new HashMap<>();
for (Map.Entry<String, Object> entry : map.entrySet()) {
bucketsPathsMap.put(entry.getKey(), String.valueOf(entry.getValue()));
}
} else {
throw new ParsingException(
parser.getTokenLocation(),
"Unknown key for a "
+ token
+ " in ["
+ reducerName
+ "]: ["
+ currentFieldName
+ "].");
}
} else {
throw new ParsingException(
parser.getTokenLocation(), "Unexpected token " + token + " in [" + reducerName + "].");
}
}
if (bucketsPathsMap == null) {
throw new ParsingException(
parser.getTokenLocation(),
"Missing required field ["
+ BUCKETS_PATH.getPreferredName()
+ "] for bucket_selector aggregation ["
+ reducerName
+ "]");
}
if (script == null) {
throw new ParsingException(
parser.getTokenLocation(),
"Missing required field ["
+ ScriptField.SCRIPT.getPreferredName()
+ "] for bucket_selector aggregation ["
+ reducerName
+ "]");
}
BucketSelectorPipelineAggregationBuilder factory =
new BucketSelectorPipelineAggregationBuilder(reducerName, bucketsPathsMap, script);
if (gapPolicy != null) {
factory.gapPolicy(gapPolicy);
}
return factory;
}
static TermSuggestionBuilder innerFromXContent(QueryParseContext parseContext)
throws IOException {
XContentParser parser = parseContext.parser();
TermSuggestionBuilder tmpSuggestion = new TermSuggestionBuilder("_na_");
ParseFieldMatcher parseFieldMatcher = parseContext.getParseFieldMatcher();
XContentParser.Token token;
String currentFieldName = null;
String fieldname = null;
while ((token = parser.nextToken()) != XContentParser.Token.END_OBJECT) {
if (token == XContentParser.Token.FIELD_NAME) {
currentFieldName = parser.currentName();
} else if (token.isValue()) {
if (parseFieldMatcher.match(currentFieldName, SuggestionBuilder.ANALYZER_FIELD)) {
tmpSuggestion.analyzer(parser.text());
} else if (parseFieldMatcher.match(currentFieldName, SuggestionBuilder.FIELDNAME_FIELD)) {
fieldname = parser.text();
} else if (parseFieldMatcher.match(currentFieldName, SuggestionBuilder.SIZE_FIELD)) {
tmpSuggestion.size(parser.intValue());
} else if (parseFieldMatcher.match(currentFieldName, SuggestionBuilder.SHARDSIZE_FIELD)) {
tmpSuggestion.shardSize(parser.intValue());
} else if (parseFieldMatcher.match(currentFieldName, SUGGESTMODE_FIELD)) {
tmpSuggestion.suggestMode(SuggestMode.resolve(parser.text()));
} else if (parseFieldMatcher.match(currentFieldName, ACCURACY_FIELD)) {
tmpSuggestion.accuracy(parser.floatValue());
} else if (parseFieldMatcher.match(currentFieldName, SORT_FIELD)) {
tmpSuggestion.sort(SortBy.resolve(parser.text()));
} else if (parseFieldMatcher.match(currentFieldName, STRING_DISTANCE_FIELD)) {
tmpSuggestion.stringDistance(StringDistanceImpl.resolve(parser.text()));
} else if (parseFieldMatcher.match(currentFieldName, MAX_EDITS_FIELD)) {
tmpSuggestion.maxEdits(parser.intValue());
} else if (parseFieldMatcher.match(currentFieldName, MAX_INSPECTIONS_FIELD)) {
tmpSuggestion.maxInspections(parser.intValue());
} else if (parseFieldMatcher.match(currentFieldName, MAX_TERM_FREQ_FIELD)) {
tmpSuggestion.maxTermFreq(parser.floatValue());
} else if (parseFieldMatcher.match(currentFieldName, PREFIX_LENGTH_FIELD)) {
tmpSuggestion.prefixLength(parser.intValue());
} else if (parseFieldMatcher.match(currentFieldName, MIN_WORD_LENGTH_FIELD)) {
tmpSuggestion.minWordLength(parser.intValue());
} else if (parseFieldMatcher.match(currentFieldName, MIN_DOC_FREQ_FIELD)) {
tmpSuggestion.minDocFreq(parser.floatValue());
} else if (parseFieldMatcher.match(currentFieldName, EXACT_MATCH_FIELD)) {
tmpSuggestion.exactMatch(parser.booleanValue());
} else {
throw new ParsingException(
parser.getTokenLocation(),
"suggester[term] doesn't support field [" + currentFieldName + "]");
}
} else {
throw new ParsingException(
parser.getTokenLocation(),
"suggester[term] parsing failed on [" + currentFieldName + "]");
}
}
// now we should have field name, check and copy fields over to the suggestion builder we return
if (fieldname == null) {
throw new ElasticsearchParseException(
"the required field option [" + FIELDNAME_FIELD.getPreferredName() + "] is missing");
}
return new TermSuggestionBuilder(fieldname, tmpSuggestion);
}
@Override
public final MultiValuesSourceAggregationBuilder<VS, ?> parse(
String aggregationName, QueryParseContext context) throws IOException {
XContentParser parser = context.parser();
List<String> fields = null;
ValueType valueType = null;
String format = null;
Map<String, Object> missingMap = null;
Map<ParseField, Object> otherOptions = new HashMap<>();
final ParseFieldMatcher parseFieldMatcher = context.getParseFieldMatcher();
XContentParser.Token token;
String currentFieldName = null;
while ((token = parser.nextToken()) != XContentParser.Token.END_OBJECT) {
if (token == XContentParser.Token.FIELD_NAME) {
currentFieldName = parser.currentName();
} else if (token == XContentParser.Token.VALUE_STRING) {
if (parseFieldMatcher.match(currentFieldName, CommonFields.FIELDS)) {
fields = Collections.singletonList(parser.text());
} else if (formattable && parseFieldMatcher.match(currentFieldName, CommonFields.FORMAT)) {
format = parser.text();
} else if (parseFieldMatcher.match(currentFieldName, CommonFields.VALUE_TYPE)) {
throw new ParsingException(
parser.getTokenLocation(),
"Unexpected token "
+ token
+ " ["
+ currentFieldName
+ "] in ["
+ aggregationName
+ "]. "
+ "Multi-field aggregations do not support scripts.");
} else if (!token(
aggregationName,
currentFieldName,
token,
parser,
context.getParseFieldMatcher(),
otherOptions)) {
throw new ParsingException(
parser.getTokenLocation(),
"Unexpected token "
+ token
+ " ["
+ currentFieldName
+ "] in ["
+ aggregationName
+ "].");
}
} else if (token == XContentParser.Token.START_OBJECT) {
if (parseFieldMatcher.match(currentFieldName, CommonFields.MISSING)) {
missingMap = new HashMap<>();
while (parser.nextToken() != XContentParser.Token.END_OBJECT) {
parseMissingAndAdd(aggregationName, currentFieldName, parser, missingMap);
}
} else if (context.getParseFieldMatcher().match(currentFieldName, ScriptField.SCRIPT)) {
throw new ParsingException(
parser.getTokenLocation(),
"Unexpected token "
+ token
+ " ["
+ currentFieldName
+ "] in ["
+ aggregationName
+ "]. "
+ "Multi-field aggregations do not support scripts.");
} else if (!token(
aggregationName,
currentFieldName,
token,
parser,
context.getParseFieldMatcher(),
otherOptions)) {
throw new ParsingException(
parser.getTokenLocation(),
"Unexpected token "
+ token
+ " ["
+ currentFieldName
+ "] in ["
+ aggregationName
+ "].");
}
} else if (token == XContentParser.Token.START_ARRAY) {
if (context.getParseFieldMatcher().match(currentFieldName, ScriptField.SCRIPT)) {
throw new ParsingException(
parser.getTokenLocation(),
"Unexpected token "
+ token
+ " ["
+ currentFieldName
+ "] in ["
+ aggregationName
+ "]. "
+ "Multi-field aggregations do not support scripts.");
} else if (parseFieldMatcher.match(currentFieldName, CommonFields.FIELDS)) {
fields = new ArrayList<>();
while ((token = parser.nextToken()) != XContentParser.Token.END_ARRAY) {
if (token == XContentParser.Token.VALUE_STRING) {
fields.add(parser.text());
} else {
throw new ParsingException(
parser.getTokenLocation(),
"Unexpected token "
+ token
+ " ["
+ currentFieldName
+ "] in ["
+ aggregationName
+ "].");
}
}
} else if (!token(
aggregationName,
currentFieldName,
token,
parser,
context.getParseFieldMatcher(),
otherOptions)) {
throw new ParsingException(
parser.getTokenLocation(),
"Unexpected token "
+ token
+ " ["
+ currentFieldName
+ "] in ["
+ aggregationName
+ "].");
}
} else if (!token(
aggregationName,
currentFieldName,
token,
parser,
context.getParseFieldMatcher(),
otherOptions)) {
throw new ParsingException(
parser.getTokenLocation(),
"Unexpected token "
+ token
+ " ["
+ currentFieldName
+ "] in ["
+ aggregationName
+ "].");
}
}
MultiValuesSourceAggregationBuilder<VS, ?> factory =
createFactory(aggregationName, this.valuesSourceType, this.targetValueType, otherOptions);
if (fields != null) {
factory.fields(fields);
}
if (valueType != null) {
factory.valueType(valueType);
}
if (format != null) {
factory.format(format);
}
if (missingMap != null) {
factory.missingMap(missingMap);
}
return factory;
}